The only benzos I've tried are Ativan, Xanax, Klonopin and Valium. I find Klonopin to be the best one for anxiety. 2 to 3 mg once or twice a day does it for my anxiety. If I take more than that I get a bit of a high, but a little foggy.
Ativan is ok but it just doesn't do much for very long.
I don't like Xanax because it makes me feel like I am out of control. I once fell down stairs on only two or three mgs.
My least favorite is Valium because it makes me sedated and depressed. It doesn't make me social at all; just ready to sleep.
As for getting high on benzos, I don't use them to get high. Just for anxiety. It isn't the kind of high that I enjoy, unless I take too much speed.